Added placeholder pages for all chapters.

Author: Rini Banerjee

fdm-jupyter-book/_toc.yml

@@ -3,14 +3,23 @@
 - chapter: Vibration ODEs
   sections:
   - file: notebooks/vib/vib_undamped.ipynb
-  - file: notebooks/vib/vib_gen_placeholder1.md
-  - file: notebooks/vib/vib_gen_placeholder2.md
+  - file: notebooks/vib/vib_placeholder.md
 
 - chapter: Wave equations
   sections:
   - file: notebooks/wave/wave1D_fd1.ipynb
   - file: notebooks/wave/wave1D_prog.ipynb
+  - file: notebooks/wave/wave_placeholder.md
 
 - chapter: Diffusion equations
   sections:
   - file: notebooks/diffu/diffu_rw.ipynb
+  - file: notebooks/diffu/diffu_placeholder.md
+
+- chapter: Advection equations
+  sections:
+  - file: notebooks/advec/advec_placeholder.md
+
+- chapter: Nonlinear problems
+  sections:
+  - file: notebooks/nonlin/nonlin_placeholder.md

fdm-jupyter-book/notebooks/advec/advec_placeholder.md

@@ -0,0 +1,7 @@
+# Coming soon
+
+Hang in there! We're still working on the **Advection Equations** chapter.
+
+Check back later to see the Devito tutorials for these sections!
+
+(Or, if you want to contribute, check out our [GitHub repository](https://github.com/devitocodes/devito_book).)

fdm-jupyter-book/notebooks/diffu/diffu_placeholder.md

@@ -0,0 +1,14 @@
+# Coming soon
+
+Hang in there! For the **Diffusion Equations** chapter, we're still working on:
+
+* An explicit method for the 1D diffusion equation
+* Implicit methods for the 1D diffusion equation
+* Analysis of schemes for the diffusion equation
+* Diffusion in heterogeneous media
+* Diffusion in 2D
+* Applications
+
+Check back later to see the Devito tutorials for these sections!
+
+(Or, if you want to contribute, check out our [GitHub repository](https://github.com/devitocodes/devito_book).)

fdm-jupyter-book/notebooks/nonlin/nonlin_placeholder.md

@@ -0,0 +1,7 @@
+# Coming soon
+
+Hang in there! We're still working on the **Nonlinear Problems** chapter.
+
+Check back later to see the Devito tutorials for these sections!
+
+(Or, if you want to contribute, check out our [GitHub repository](https://github.com/devitocodes/devito_book).)

fdm-jupyter-book/notebooks/vib/vib_gen_placeholder1.md

@@ -0,0 +1,11 @@
+# Coming soon
+
+Hang in there! For the **Vibration ODEs** chapter, we're still working on:
+
+* Generalization: damping, nonlinearities, and excitation
+* Applications of vibration models
+* Exercises and Problems
+
+Check back later to see the Devito tutorials for these sections!
+
+(Or, if you want to contribute, check out our [GitHub repository](https://github.com/devitocodes/devito_book).)

fdm-jupyter-book/notebooks/vib/vib_gen_placeholder2.md

@@ -0,0 +1,15 @@
+# Coming soon
+
+Hang in there! For the **Wave Equations** chapter, we're still working on:
+
+* Generalization: reflecting boundaries
+* Generalization: variable wave velocity
+* Building a general 1D wave equation solver
+* Analysis of the difference equations
+* Finite difference methods for 2D and 3D wave equations
+* Implementation
+* Applications of wave equations
+
+Check back later to see the Devito tutorials for these sections!
+
+(Or, if you want to contribute, check out our [GitHub repository](https://github.com/devitocodes/devito_book).)